2018 Kia Sportage electrical system problems
29 owner complaints filed with NHTSA name the electrical system on the 2018 Kia Sportage — 18% of all complaints for this model year.
What owners report
“Shortly after driving away, before reaching a highway on-ramp, I noticed smoke coming from the vehicle. I turned around and returned to the location. By the time I arrived, the vehicle was emitting black smoke, and shortly after, it was fully engulfed in fire before I could retrieve a fire…”
filed Sep 10, 2026
“The oil was leaking somewhere not on the motor not under the car not blowing black smoke. I kept adding oil to it. No oil light. I was told not to park between 2 houses or in my garage it could catch on fire. I took it in several times and they did all kinds of stuff motor wash knock sensor was…”
filed May 16, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 105) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions…
SC340_OWNR_NQ5_105 · Emissions · issued Mar 17, 2026
Electrical System problems in other Sportage years
| Year | Reports | Share |
|---|---|---|
| 2026 Sportage | 6 | 22% |
| 2025 Sportage | 15 | 29% |
| 2024 Sportage | 12 | 17% |
| 2023 Sportage | 45 | 24% |
| 2022 Sportage | 8 | 17% |
| 2021 Sportage | 6 | 12% |
| 2020 Sportage | 19 | 12% |
| 2019 Sportage | 10 | 14% |
| 2017 Sportage | 62 | 16% |
| 2016 Sportage | 17 | 13% |
| 2015 Sportage | 18 | 12% |
| 2014 Sportage | 8 | 7% |
Other reported problem areas on the 2018 Kia Sportage
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.